http://archive.thenewsstar.com/VideoNetwork/1621968664001/Largest-British-Attack-Ship-Joining-Olympic-Securityhttp://cdn.newslook.com/ba/ba0903445165cbd7dc1571d2c7240946/mp4_low/ba0903445165cbd7dc1571d2c7240946-mp4_low.mp4http://archive.thenewsstar.com/VideoNetwork/1621968664001/Largest-British-Attack-Ship-Joining-Olympic-Securityhttp://cdn.newslook.com/ba/ba0903445165cbd7dc1571d2c7240946/images/frame_0005.jpgLargest British Attack Ship Joining Olympic SecurityA large-scale military exercise to test security preparations ahead of the 2012 London Olympics is underway in the UK capital, as the Royal Navy's largest attack ship squeezed up the Thames River.7olympicmilitary technologyinternationalsportsEuropeNewsLondonUnited Kingdomhms oceannewslookolympic sportsWorldMilitary01:51